Are there models/simulations of antigravitational antimatter-galaxies?even if the particle and the antiparticle has exactly opposite gravitational charges, the potential to raise to a given height the pair is not zero, it just falls faster than a distance-squared law. A gravitational dipole force would fall as $r^{-3}$. You still are spending some non-zero energy to raise it.

Can antimatter be used as fuel for nuclear reactors?anna, no one cares about extracting energy from antimatter other than for interstellar propulsion. If we could safely store kilograms, or even tons of the stuff for years, a trip to Alpha-Centauri would take less than a decade. Then, all the inefficiency in creating the antimatter would be just the production cost of interstellar-worthy fuel

Mar
6

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Can antimatter be used as fuel for nuclear reactors?Emilio, no one cares about extracting energy from antimatter other than for interstellar propulsion. If we could safely store kilograms, or even tons of the stuff for years, a trip to Alpha-Centauri would take less than a decade. Then, all the inefficiency in creating the antimatter would be just the production cost of interstellar-worthy fuel

Superposition in classical Mechanicsthe simplest approach to derive the group structure from the differential equation is to expand in power series in terms of the nonlinear coeffs. and find the structure constants for each power

Feb
24

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Superposition in classical Mechanicsugh. Some nonlinear differential equations retain a Lie group symmetry of solutions, meaning that $\phi_1$ and $\phi_2$ are solutions, imply that $G(\phi_1, \phi_2)$ will also be a solution